Home / 936,866.84-1,405,090.02-430,941.92

Finding the Fourth Proportional to 936,866.84, 1,405,090.02 and 430,941.92

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Solution

The fourth proportional to 936,866.84, 1,405,090.02 and 430,941.92 is: 646,316.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,866.84 : 1,405,090.02 = 430,941.92 : x
  2. Step 2: Convert to fraction form
    936,866.84/1,405,090.02 = 430,941.92/x
  3. Step 3: Cross multiply
    936,866.84x = 1,405,090.02 × 430,941.92
  4. Step 4: Simplify right side
    936,866.84x = 605,512,190,991.64
  5. Step 5: Solve for x
    x = 605,512,190,991.64/936,866.84
  6. Step 6: Final answer
    x = 646,316.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.